198 
Scientific Intelligence. 
any thing deranged the line of march; and they never failed to 
hasten the advance of the loiterers.” 
36. On the limits of the occurrence of Fishes in high situa- 
tions.— According to Raymond, the only fishes that occur in the 
waters of the Pyrenees, at heights of from 1000 to 1162 toises, 
are Salmo Trutta, S. Fario, and S. alpinus. Higher up, all 
fishes disappear. The water-salamander also ceases to live at a 
height of 1292 toises; — probably because the numerous higher 
lakes are generally half the year covered with ice. Rut the fol- 
lowing fact mentioned by Humboldt, proves that cold is not the 
sole cause of the disappearance of fishes in high places, viz. that 
in the equatorial regions of America, where the mean temperature 
of 0° of the Centigrade scale, or at the freezing point of water, 
begins 1500 toises higher than in the Pyrenees, the fishes disap- 
pear earlier in lakes and rivers. No Trout occur in the An- 
des. At a height of from 1400 to 1500 toises, there still occur 
Pocilien, Pimelodes, and the very remarkable new form Eve- 
mophilus and Astroblepus. From 1800 to 1900 toises, where the 
mean temperature is still 4- 9° 5' Cent., and where most of the 
lakes scarcely freeze any time during the year, we observe un- 
der the Equator all fish cease to live, with exception of the re- 
markable Pimelodes Cyclopum, which are thrown out in thou- 
sands with the clay-mud, projected from fissures of the rocks, 
at the height of 2500 toises. But these fishes live in the subter- 
ranean lakes. 
37. Fossil Elk of the Isle of Man. — The following are some of 
the dimensions of the splendid specimen of this fossil animal, in 
the Royal Museum of the College of Edinburgh. 
Ft. In. 
Height to the tip of the process of the first dorsal vertebra, which is the 
highest point of the trunk, . . . ..61 
Height to the anterior superior angle of the scapula, . . & 4 
Length from the first dorsal vertebra to the tip of the os coccygis, 5 2 
Height to the tip of the right horn, . . . . 9 7| 
Lateral or horizontal diameter of the thorax, at the widest part, that is, 
at the eleventh rib, . . . • . 2 G| 
Depth of the thorax, from the tip of the process of the eighth dorsal ver- 
tebra to the sternum at the junction of the eighth rib, ♦ 2 2 
A fine engraving of this specimen, from a drawing by Lizars, 
will appear in the next volume of the Suppleinent to the Ency- 
clopaedia Britannica. This species, the most perfect ever known, 
